Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74AS821DW Datenblatt(PDF) 4 Page - Texas Instruments |
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SN74AS821DW Datenblatt(HTML) 4 Page - Texas Instruments |
4 / 6 page SN54AS821, SN54AS822, SN74AS821, SN74AS822 10-BIT BUS INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SDAS230 – D2825, DECEMBER 1983 – REVISED JANUARY 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 4 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage applied to a disabled 3-state output 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: SN54AS821, SN54AS822 – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . SN74AS821, SN74AS822 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . recommended operating conditions SN54AS821 SN74AS821 SN54AS822 SN74AS822 UNIT MIN NOM MAX MIN NOM MAX VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IOH High-level output current –24 –24 mA IOL Low-level output current 32 48 mA tw Pulse duration, CLK high or low 9 8 ns tsu Setup time, data before CLK ↑ 7 6 ns th Hold time, data after CLK ↑ 0 0 ns TA Operating free-air temperature –55 125 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN54AS821 SN74AS821 PARAMETER TEST CONDITIONS SN54AS822 SN74AS822 UNIT MIN TYP‡ MAX MIN TYP‡ MAX VIK VCC = 4.5 V, II = – 18 mA – 1.2 – 1.2 V VCC = 4.5 V to 5.5 V, IOH = – 2 mA VCC –2 VCC –2 VOH VCC = 4.5 V, IOH = – 15 mA 2.4 3.2 2.4 3.2 V VCC = 4.5 V, IOH = – 24 mA 2 2 VOL VCC = 4.5 V, IOL = 32 mA 0.25 0.5 V VOL VCC = 4.5 V, IOL = 48 mA 0.35 0.5 V IOZH VCC = 5.5 V, VO = 2. 7 V 50 50 µA IOZL VCC = 5.5 V, VO = 0.4 V –50 –50 µA II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0 .4 V – 0.5 – 0.5 mA IO‡ VCC = 5.5 V, VO= 2.25 V –30 –112 –30 –112 mA Outputs high 55 88 55 88 ’AS821 Outputs low 68 109 68 109 ICC VCC =5 5V Outputs disabled 70 113 70 113 mA ICC VCC = 5.5 V Outputs high 55 88 55 88 mA ’AS822 Outputs low 68 109 68 109 Outputs disabled 70 113 70 113 † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. |
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